Esko Suomi created KAFKA-746:
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Summary: Snappy compression isn't applied to messages written to
disk on broker
Key: KAFKA-746
URL: https://issues.apache.org/jira/browse/KAFKA-746
Project: Kafka
Issue Type: Bug
Components: producer
Affects Versions: 0.7.2
Reporter: Esko Suomi
Assignee: Jun Rao
Priority: Minor
We recently tested 0.7.2 performance using different compression codecs for
messages and noticed that when using Snappy (compression.codec = 2 in Producer
configuration) the messages written to topic partitions were written without
compression. Compared to GZIP (compression.codec = 1) this is especially
peculiar since with GZIP the partition files themselves were compressed as
expected.
I did walk through the 0.8 code briefly and didn't spot any obvious reasons why
this would be happening so I'm now handing this issue completely into your able
hands.
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